300
CDUS41 KLWX 140540
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1240 AM EST SAT DEC 14 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 13 2024
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 38 1:20 PM 73 2015 47 -9 50
MINIMUM 23 5:44 AM 7 1988 29 -6 28
AVERAGE 31 38 -7 39
PRECIPITATION (IN)
YESTERDAY 0.00 1.47 1996 0.11 -0.11 0.00
MONTH TO DATE 1.59 1.48 0.11 2.46
SINCE DEC 1 1.59 1.48 0.11 2.46
SINCE JAN 1 32.62 41.42 -8.80 31.49
SNOWFALL (IN)
YESTERDAY 0.0 8.8 1966 0.1 -0.1 0.0
MONTH TO DATE T 1.0 -1.0 0.5
SINCE DEC 1 T 1.0 -1.0 0.5
SINCE JUL 1 T 1.3 -1.3 0.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 34 27 7 26
MONTH TO DATE 366 330 36 280
SINCE DEC 1 366 330 36 280
SINCE JUL 1 1034 1230 -196 1051
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1586 1231 355 1380
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WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 3.2
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 8:00 AM
LOWEST 44 2:00 PM
AVERAGE 63
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 69 2015
MINIMUM TEMPERATURE (F) 29 3 1989
SUNRISE AND SUNSET
DECEMBER 14 2024......SUNRISE 7:21 AM EST SUNSET 4:48 PM EST
DECEMBER 15 2024......SUNRISE 7:22 AM EST SUNSET 4:49 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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